US1479577A - Electric switch - Google Patents

Description

Jan, 1, 1924 -1,479,577

E. G. K. ANDERSON ELECTRIC SWITCH Filed June 30, 1919 2 Sheets-Sheet l gli; 111:15' q INVENTO? ATTORNEY Jan. 1, 1924v 7 1,479,577

E. G.t K. ANDERSON ELECTRIC SWITCH Filed June 50, 1919 2 Sheets-Sheet 2 Patented l, 1924.

JUNITED STATES PATENT oFFicE.

lERNST G. K.VANDEBSN, 0F CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 APPLETON ELECTRIC CO., -OI@ CHICAGO, ILLINOIS, A-CORIO'RATION OF ILLINOIS.

ELECTRIC swrrcn.

Application filed June 30, 1919. Serial N0. 307,650.

To all whom it mag/concern:

Be it known that I, ERNST G. K. ANDER- SON, a citizen of the United States, and a resident of Chicago, in the county of Cook and, State of Illinois, have invented cer ain new and -useful Improvements in Ele tric Switches; and I do hereby declare that the following is a full, clear, and exact description'thereof, reference being had to the acm companying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This inventionrelates to improvements in electric switches and refers more particular-V 1y to that form of switch4 illustrated in my rior ap lication for United States Letters atent erial Number 226,419, filed April 3, 1918, wherein the vactuating device for the switch is so constructed and associated with the switch elements that the switch is opened and closed by the same movement of said actuating` device, regardless lof whether the,

switch be opened or closed at a given time. As shown in said prior application, the movement ofv the actuatingdeviee is anniversal swinging movement and also an axial movment; and the' actuating device is automatically restored to normal position after l each operation. Associated with the movable switch element or blade is a spring element which serves, upon operation of the actuating device, to qulckly throw the switch blade past its center of movement and to its full open or its full closed position, the actuating device being automatically restored to position Ato reverse the direction of throw of the switch blade in the .next operation thereof.

The present invention relates to improvements which adapt the essential elements of my aforesaid invention to a given switch structure. f

In the drawings,

' Figure 1 is `a vertical section of a switch and its switch mounting, on the line 1-1 of-Figure 3.

Figure 2 is a vertical section thereof on the line 2-2 of Figure 1.

Figure 3` is a horizontal section on the line 3-3 of Figure -1.

AFigure 4 is a vertical section on 4the line 4-4 of Figure 3, looking in the direction of the indicating arrows.

Figure 5 is a. perspective lview lof the switch blade mounting frame.

Figure A6 is a perspective view of the switch actuatin p unger.

Figures 7 an 8 are fragmentary details illustrating the essential elements of the switch mechanism in different positions.

Figure 9 is a plan view of the swinging switch blade.

Figures 1() and 1 1 are details of said blade, Figure 10 bein taken on the line 10-10 of Figure 11, and igure 11 being an edge ele- Vation of said blade.

Figure 12 is a perspective view of a`controller member of the switch reversing element.

l Figure 13 is a perspective View of a spring actuated switch blade throw-over plunger.

Figures 14 and 15 are, respectively, a plan view and a sectional View, .the latter on thel line 15-15 of Figure 14, of the oscillating switch reversing element. y

As shown in the drawings, the switch mechanism is enclosed by and supported on aninsula'ting base comprising top and bottom members 21, 20, respectively. 25 (Figure 5,), designates a hollow, rectangular frame that is supported inthe base and projects ;therefrom (Figur'esal, 3 and 4). It has an inwardly extended ,base 26 provided with an aperture 27 which receives a rivet or stud 28 to hold the frame' in place. 'The inner. end of the base is reduced in width and 1s fofmed with upwardly extending, rearward y curved arms 29, 30 that are provided with registering apertures 31. The rear wall of the frame 25V is provided with an opening 32 (Figuresl, 7, and 8), through ,which extends a universally movable actuating device 33, which, as shown, has the form of a tube, and is provided with a Hat seat or flange 35 adaptedto engage a corresponding normally parallel seat portion -36 of a lunger 37 (Figure 6). Said plunger 37 as. a horizontal guide portionfcomprising a narrow member 40 that is joinedto the vertical seat portion 36 b a wider horizontal member 100 41, and the gui e'fmember fits andslides onv l the base 26'of the frame 25.

45, 45 designate fixed switch terminals that cooperate with a swinging switchl blade which comprises a yoke shaped member 47 105 that is ivoted by the pivot pin 4B which .ex 4tends t rough theapertures 49 of the arms of the blade and through the apertures 31 of v the arms 29, 30 of the frame 25. The, U- shaped terminal member 46 of the Switch 110 blade fits over the yoke shaped blade 47. llt

is insulated therefrom by the ls-shaped insulating strips 50 which together with said terminal member, are fixed to the swinging blade, by ears 51 that are inte al with the switch blade 47 and are fol ed inwardly over the insulatin strips 50, which latter, in turn, overlie t e closed portion' of the switch blade 47. The said closed portion of the lll-shaped switch blade 47 is formed with an opening 52. which registers with, but is smaller than, an opening 53 in the closed portion of the U-shaped terminal 46, as best shown in Figures 9 and 10. rllhe openings 52, 53 are provided for thepassage of the shank 54 of a throw-over plunger (Figure 13) that is provided with a head 55 formed with a downwardly opening notch 56 for a purpose hereinafter to be described.

60 designates a rockin reversing member for the switch blade. t is pivoted on the pivot pin 48 and lies between the lower ends of the arms of the blade. member comprises two parallel plates 61 which are connected by' a lower cross member 62'and upper cross members/64, 65 integral with said plates; and the plates are provided with registeringopenings 61 forthe passage of the pivot pin 48. The' lower cross member 62 forms inwardlyv and outwardly facing shoulders 66, 67, respectively, and the 'upper cross member 64 forms an outwardly facing shoulder 68, for purposes hereinafter to be described. One of the plates 61 is providedvwith an extension 69,

forming a downwardly facing shoulder 70. Both of said plates are formed at their outer sides with guide extensions 71 for a purpose to be hereinafter described.

75 designates a controller member which comprises an outwardly extending shank 76 and two inwardly extending fork arms 77, 78, respectively, that are formed at their inner ends with recesses 79, 80, respectively. The said controller member is provided between said shank and fork arms with a cross arm 81 that is flat on its outer surface 82 to fit flat against the inner face of the dange 36 of the operating plunger 37. Said flange 360i the p unger 1s provided with a central uide opening 83 outwardly through which t e shank 76 of the controller member loosely extends and by which itis guided in operative movement.

rllhe controller member 75 is held in nor-l mal position when the actuating device 33 is in its normal horizontal position with the flat face 82 of its cross arm 81 in contact with the Harige 36 of the plunger by a sprin 85, coiled between its ends, the outer en vot which extends through an opening in the controller member` and the inner transverse portion 87 of which extends through registering openings 88 in the upstanding arms 29, 30 of the frame 25. 'llhe said arms 29, 30

Said reversing s Leraar? troller member in the position shown in Figure 1 and to return said member from the position indicated in Figures 7 and 8 to that shown in Figures 1 and 4. rlFhe spring 85, thus acting on the controller member serves, through the plunger 37, to restore the actuating member to its position when the latter is released.

The controller member 75 controls the operation of the switch reversing device 60 when the yactuating handle is swung for forced inwardly by the engagement ot 'the recessed ends 79, 80, of the arms 77,78, respectively, with the shoulders 68, 67, respectively of the switch reversing member, as indicated in Figures 1,- 4 and 15". The notched end of the head'55 of the throwover plunger engages with the cross member of said reversing member, as best shown in Figures 1,4, 7, and 8. A'spring 90 surrounding the shank of said throw-over plunger? and interposed between the closed portion of the yoke shaped switch blade 47 and said head 55 serves expansively to normally hold said switch blade at one of the cxtreme positions of its movement, as indicated -in Figures 1 and 4, andalso to throw the switch blade quickly from one position to the other when said inner end of the plunger swings past the plane of the pivot The spring 90- and its `associated plunger, therefore, constitutes means. for yieldingly holding the switch blade at the extreme positions of its movement and for automatically and quickly throwing the blade past. its center of movement.

One of the upstanding arms of the frame 25 (the arm 30 shown) is provided on its inner face with a stop lug 92 whichis adapted to be engaged either by the shoulder ot the projection 69 of the switch reversing devices in one eXtreme position-ot the switch blade, as shown in Figure 1, or to be en-v gaged by the shoulder66 ott' the cross member 62 of said reversing device in the other extreme position of the blade 28, as'shown in Figure 4.

rl`he operation of the as follows:

ln Figures 1', 2, and 3, the actuating dcvice 33, the controller member 75,' and the switch reversing member 6() are in the normal positions which they occupy when the switch is open. ln these positions of the parts the recessed portion of the' fork arm 78 of the controller member is engagedwith the shoulder 67 of the lower cross member 62 of the rocking switch reversing member, and the other fork arm 77 ot the controller member lies between the guide projections 71 of the laterally separated plates 61l of said reversing member. ln the position of switch mechanism is lll) -hold the latter away from the fixed switch terminals 45 thereof. The opening movenient pf, the switch isrlimited by engagements ofv horns 95 on the lower endsot the arms of the switch blade with a shoulder 96 formed by the inwardly facing edge of the top wall of the frame 25. The movement of the reversing member 60, in the position of the parts shown in Figure 1 is limited by engagement of the shoulder 70 with the stop 92 of the arm 30.

lu 4 v f, now the actuating member 33 be either pushed inwardly or be swung about its pivot,

it will have the effect to turnthe reversing member in the direction indicated by the arrow on Figure 1. In thus turning the reversing member the lower end of the plunger 54, seated on the cross piece 65 of the reversing member, is caused to move outwardly towards the actuating device 33 lin a curved path. This movement of` the plunger causes it to be extended through the openings in the closed lend of the switch blade and laces the spring90 under coinpression. en the lower or headed end of the plunger passes the center of its arc of movementl or just after .it has passed the plane of the pivot pin 48, the power of the spring, under com ression, serves to uickly throw the switch b ade downwardly withl the terminal blades 46 into contact with the fixed terminals 45 and thereby closes thc switch (Figure 4). The closing movement of the switch blade is limited by engagement cfa second pair .of horns 98 with shoulders 99 formed on the inner edge of the bottom .wallof the frame 25 at thesides of the switch blade suportin `arms 29 Iand 30. Movement of the reversing member in the direction which it is moved in the closing movement of the switch is arrested by contact of the shoulder 66 of the cross member "62 of said reversing member with 'said stop vlug 92, as indicated in'dotted lines in Figure 4. After the switch has thus been moved from open to closed osition and the actuating device 33 release the spring 85 serves to restore the controller-member 75 and therethrough the said actuating device 33.

The operation of the parts to open the switch from its closed osition shown in 'Figure 4 is the reverse o that just described. From an inspection of Figure 4, it will be noted that the -recessed end 79 kof theupper fork arm 77 of the controller memberis in contact with the shoulder '68 of the reversing member so that inward movement of the controller member acts to rock the reversin i member and to carry tlle headed end o the plunger 54 inwardly past the plane of 'the axis of the pivot pin 48,

tact of the horns 95 with the shoul er 96 above referred to, and the rocking movement of the reversing member 60 is arrested by contact of the shoulder 70 thereof with the stop lug 92 hereinbefore referred to. i

It will thus be observed that the same movement of the actuating device 33, whether it be a swinging movement in all the directions in which it is capable of swinging or whether it be an endwise movement, has the effect to operate t-he controller member and the reversing member 60 in away toswing the inner end of the throwover plunger 54 ast the plane of the pivot member 48 on which the reversing member rocks, so that the spring 90 may quickly throw the switch blade 47 from either limit of its movement to the other, regardless of whether the switch be o n or closed.

The elements for con uctin the current from the switch elements to t e center and shell conductors 105, 106, respectively, for the lamp may be of any known `or preferred form and need not be further described.

I claim as my invention:

1. In an electric switch, the combination with a swinging switch member and its c coperating fixed terminal, a rocking reversing device, a spring controlled plunger operatively connected between said revers-' atively connected to t e reversing mem er,

and means for tip ing and reciprocating said controller mem er.

3. with a swinging switch member and its cooperating fixed terminal, a vrocking reversing device, a sprinv controlled plunger operatively connected between said reversing device Aand said switch member, a con- In an electric switch, the combinationv troller member mounted for tipping and. v

reciprocating movement and operatively` connected at one end to the reversing inem-'- ber, and an actuating device mounted for` universal swinging movement having a. fla-t vio ,swinging switch member to arrest it at each extreme limit of its movement, a controller 4member coacting with said reversing member on opposite sides of the rocking axis, and an actuated member coacting with said controller member.

5. lin an electric switch, the combination with a swinging switch member and its cooperating tixed terminal, a rocking reversing device, a spring controlled plunger operatively connected between said reversing de-` vice and said swinging switch member, a frame on which said swinging switch member is mounted, said :trame being provided 'with stop shoulders adapted to cooperate with the swinging switch member-to arrest it at each extreme limit of its movement, a controller member mounted `:tor tipping and reciprocatory movement and adapted at one end for coaction with the reversing'membei', said controller member being provided at its other end with a dat face and an actuating member mounted tor universal swinging and axial movement and adapted to cooperate witli the flat face of the controller member.

6. lin an electric switch, the combination with a frame provided with arms, and lixed terminals, of a swinging switch member cooperating witli said fixed terminals and pivoted to said arms, a rockin reversing member mounted to rock on t e swinging axis of the switch member, spring means to connect said reversing member to the switch member to throw the latter from one extreme position to the other, a controller member mounted on the frame for tipping K and reciprocatory movement, and means for actuating said controller member.

7. lin an electric switch, the combination with a frame providedvwith arms, and fixed terminals, of a swinging switch member cooperating with said oted to said arms, a rocking reversing member, spring means to'connect said reversing member to the switch member to throwthe' latter from one extreme position oit its movement to the other,- a controller member mounted on the trame tor tippin and reciprocatory movement, said contro er mem? ber being provided with a straight faced portion, a plunger slidable in said trame Xed terminals and piv-k and provided with a dange to engage said straight faced portion, and an actuating device pivoted on said frame for universal swinging movement and having a dat seat to engage said plunger flange. y

` 8. ln an electric switch the combination with a swinging switch member,\oi a rocking reversing member, la spring controlled plunger engaging a shoulder on the reversing member and slidable i'ireely through the switch member, with a spring surrounding the plunger and interposed between the switch member and a shoulder Aon the plunger, and means to alternately engage said reversing member on opposite sides of its rocking axis tork impartingv alternate rocking movement thereto. l

9. lin an electric switch, the combination with aswinging switch member, of a` rocking reversingmember, a spring controlled plunger engaging a lshoulder on the reversing member andslidable freely through the switch member, with la spring surroundiiiiv the plunger 'and interposed between sai switch member anda shoulder on the plun' 10;- ln anl electric switch, a frame., a lllshaped switch blade pivoted to said trame,

a rocking reversing member pivoted on the swinging axis of said blade, a; plunger en-v gaging a shoulder on said actuating device an slidable through the U-shaped blade,

with a spring surrounding it and interposed.,

between said blade and a shoulder on the k plunger, horns on the switch bladeadapted to engage Ashoulders on the frame tofarrest 'said blade at both limits oit its movement,

and aV single device normally disconnected from said' reversing member to alternately rock saidr reversing member on its pivot.

ll. lin an electric switch, a frame, a U- shaped switch blade pivotedto said frame,

a rocking reversing member, 'a plunger en` gagin a shoulder on said member and slid- `able t rough the lll-shaped blade, with a spring surrounding it and interposed jbetween said blade and a shoulder on thel plunger, horns on the switch blade adapted-to engage shoulders on the trame ,to arrestsaidf lll@ rec

blade at'both limits oilits movement, a cone." troller member mounted ilor tipping and vrei ciprocatory movement on .said iframe and4 `provided with forked v armsi which-engage 'shoulders on the reversing member-atnppo--- site sides oitits pivotal axis, and ins tor actuating saidv controller member. l "l2, lin an electric switch, a trame,.a U-

sliaped switch blade pivoted to said trame,

a rocking reversing member pivoted to the .swinging axis of said blade, a plunger engaging a shoulder on said actuating device and slidable through the U-shaped blade, with a spring surrounding it and interposed between said blade and a shoulder on the plunger, means to arrest the switch blade at both limits of its movement, a controller member mounted for tipping and reciprocatory movement on said frame and provided with forked arms which engage shoulders onthe reversing member at opposite sides of its pivotal axis, said controller member being provided with a straight faced portion, a plunger slidable in the frame and having a straight portion adapted for engagement with the straight portion of t-he controller member, and an actuating member mounted for universal swinging movement in the frame, said controller member being provided with ashank which extends through a guide opening in said flange of the plunger and into the actuating member.

131 An electric switch comprising a base,

fixed terminals mounted thereon, a swinging switch blade supported on the base for con- A tact with 'the lixed terminals, a` rocking reversing device mounted on the swinging axis of said blade, a spring actuated throw-over plunger connecting sald reversing vdevice to said switch blade, and means to alternately act on said reversing device on opposite sides of its axis for alternately rocking said reversing device.

14. An electric switch comprising a base, fixed terminals'mounted thereon, a swinging switch blade supported on the base for contact with the fixed terminals, a rocking reversing device mounted on the swinging axis of said blade, a spring actuated throw-over plunger connecting said reversing device to the switch blade, and an actuating device mounted for universal swinging movement on the base for actuating said reversing device.

In testimony whereof I claim the foregoing as my invention, I hereunto append my signature at Chicago,

of June, 1919.

ERNST G. '1K-.ANDERSON Illinois this 25th day'

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